Finding the Fourth Proportional to 99,591.76, 149,388.12 and 29,471.68
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Solution
The fourth proportional to 99,591.76, 149,388.12 and 29,471.68 is: 44,207.66
Step by Step Solution
- Step 1: Write the proportion equation
99,591.76 : 149,388.12 = 29,471.68 : x - Step 2: Convert to fraction form
99,591.76/149,388.12 = 29,471.68/x - Step 3: Cross multiply
99,591.76x = 149,388.12 × 29,471.68 - Step 4: Simplify right side
99,591.76x = 4,402,718,868.44 - Step 5: Solve for x
x = 4,402,718,868.44/99,591.76 - Step 6: Final answer
x = 44,207.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.